sam invested a sum of money at 6%. he invested a second sum, $1,000 more than the first sum at 7%. if annual income was $1,110, how much did he invest at 6%? how much at 7%?

To solve the system of equations below, grace isolated the variable y in the first equation and then substituted into the second equation. what was the resulting equation? 3y=12x x^2/4+y^2/9=1

Ineed with angles and the measure of them i have abc a is 65 and b is (3x-10) and c is (2x) find the value of x

Jordan got 27 out of 90 correct on his test . what fraction of the marks did her get correct